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Vibro-packing experiment of granular UO$$_{2}$$ with uranium particles

Matsuyama, Shinichiro; Ishii, Katsunori ; Hirai, Mutsumi*; Tsuboi, Yasushi*; Kihara, Yoshiyuki

In the vipac fuel, it is considered that spherical metallic particles mainly consisting of uranium are added as an oxygen getter into vipac MOX fuel for FBR to prevent cladding inner corrosion by fuel-cladding chemical interaction (FCCI). In this study, vibro-packing experiments of granular UO$$_{2}$$ particles and spherical metallic uranium particles and post-packing examinations such as destructive experiment were carried out. This study revealed that that it is important to feed particles uniformly into a cladding tube to obtain a vipac fuel with getter particles uniformly dispersed. Constant-volume feeder seems to be useful to obtain a vipac fuel with getter particles uniformly dispersed.

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